[QGIS-Developer] QgsMessageLog signals are broken in pyQGIS with QGIS 4

David Marteau dmarteau at 3liz.com
Tue Mar 24 14:20:27 PDT 2026


Hi,

We have noticed that the QgsMessageLog signals (`messageReceived`, 
`messageReceivedWithFormat`) are not received anymore in Python callback 
slots.

This is an important api break and from this, one may suspect that other 
(bad) surprise are waiting at the corner.

There is mention of this in the python tests from QGIS sources, so the 
problem was known at some point.

What are the positions on the subject ?   Is there some hints toward a 
fix (so that we could give some help)  ?

Thanks

-- 

David Marteau
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